Question
A man sells an article at a certain price incurring 20%
loss. If he had sold the same article for Rs. 20 more he would have earned 20% profit. What was the cost price of the said article?Solution
ATQ, we can say that Let the cost price of article be 100x When sold at loss SP = 100x - (20/100) × 100x = 80x When sold at profit SP = 100x + (20/100) × 100x = 120x According to the question, 120x - 80x = 20 ⇒ 40x = 20 ⇒ x = 0.5 ⇒ 100x = 50  ∴ Cost price of article is Rs. 50
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(1963.33 ÷ 6.5 - 193.99)/? = 753.02 ÷ 26.98
What approximate value will come in place of the question mark (?) in the following question?
1456.92 + ? – 1324.87 = 1875.34 – 1683.29
564.932 + 849.029 – 425.08 = 612.095 + ?
{44.78% of (11.67 × 54.78)} ÷ 2.65 = ? + 19.25
What approximate value will replace the question mark (?) in the following?
? –...
Find the approximate value of Question mark(?). No need to find the exact value.
24.95 × (36.06 ÷ 6) + 74.95% of 159.89 – √(143.94) × 2....
3374.89% of 31.80 – 1739.85% of 44.72 = (?2 )% of 1188.13Â
?% of (112.31 ÷ 13.97 × 90.011) = 359.98
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